Abstract

The object of the invention is a method and an apparatus in an electric propulsion arrangement of a sailing vessel, wherein the sailing vessel has a traction device provided with an electric motor and with a propeller mechanism (1), the electric motor of traction device is arranged to be used, if necessary, in forward drive and reverse drive as well as during sailing as a generator for charging the accumulators of the sailing vessel. The propeller mechanism comprises a propeller hub (3) with blades (3a), a hollow propeller shaft (4) fixed at its first end to the propeller hub (3), a shaft controlling the pitch angles of the propeller blades (3), said control shaft rotating inside the propeller shaft (4), and a servomotor (8) rotating the control shaft. The servomotor is fixed to the second end of the propeller shaft (4) to be rotatable along with the propeller shaft (4).

IPC Classes  ?

• B63H 3/04 - Propeller-blade pitch changing actuated by control element coaxial with propeller shaft, e.g. the control element being rotary the control element being reciprocatable
• B63H 20/14 - Transmission between propulsion power unit and propulsion element